Home / 641,667.11-962,168.42-342,067.21

Finding the Fourth Proportional to 641,667.11, 962,168.42 and 342,067.21

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Solution

The fourth proportional to 641,667.11, 962,168.42 and 342,067.21 is: 512,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,667.11 : 962,168.42 = 342,067.21 : x
  2. Step 2: Convert to fraction form
    641,667.11/962,168.42 = 342,067.21/x
  3. Step 3: Cross multiply
    641,667.11x = 962,168.42 × 342,067.21
  4. Step 4: Simplify right side
    641,667.11x = 329,126,265,429.26
  5. Step 5: Solve for x
    x = 329,126,265,429.26/641,667.11
  6. Step 6: Final answer
    x = 512,923.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.